@charset "utf-8";

@import url('normalize.css');

@import url('font-awesome.css');

* {
    box-sizing: border-box;
    overflow: inherit;
    text-align: center;
}

html {
    font-size: 10px;
    font-weight: 400;
    font-family: Verdana, "微软雅黑";
    overflow: hidden;
}

body {
    font-size: 2rem;
    color: #E4E4E4;
    background-color: #2B2525;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
}

ul, li {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.header, .main, .footer {
    width: 100vw;
}

.header {
    height: 15vh;
}

.main {
    height: 75vh;
}

.footer {
    height: 10vh;
}

/* 页头部分 start */

.header-brand {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: distribute;
    justify-content: space-around;
}

.brand-img {
    display: block;
    height: 15vh;
    transition: 2s;
}

.link-front:hover>.brand-img {
    transform: rotateX(45deg);
    ;
}

.part-container {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-flow: row nowarp;
    flex-flow: row nowarp;
    -ms-flex-pack: justify;
    justify-content: space-between;
    -ms-flex-align: center;
    align-items: center;
}

.header-brand {
    -ms-flex: auto;
    flex: auto;
}

.header-content {
    -ms-flex-positive: 3;
    flex-grow: 3;
}

.part-container>section {
    -ms-flex-positive: 1;
    flex-grow: 1;
}

.part-container, .part-container>section {
    height: 100%;
}

/* 页头部分 end */

/* 页面主体 start */
.main>.part-container {
    padding-top: 3rem;
    width: inherit;
}

.main-left {
    -ms-flex-preferred-size: 20%;
    flex-basis: 20%;
    color: #2B2525;
    font-weight: 400;
    overflow: visible;
}

.main-right {
    -ms-flex-preferred-size: 80%;
    flex-basis: 80%;
}

/* 主体左 start */

.menu {
    width: 100%;
    display: -ms-flexbox;
    height: 100%;
    display: flex;
    -ms-flex-flow: column;
    flex-flow: column;
    overflow: visible;
}

.menu-item {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-flow: row nowarp;
    flex-flow: row nowarp;
    -ms-flex-pack: start;
    justify-content: flex-start;
    -ms-flex-align: center;
    align-items: center;
    margin-bottom: 1px;
    width: 30%;
    height: 10%;
    overflow: visible;
    transition: 1s;
    background-color: #24757E;
    box-shadow: .5rem .5rem .5rem #180201;
    z-index: 1;
}

.menu-item>.icon {
    -ms-flex: none;
    flex: none;
    width: 100%;
    font-size: 2.3rem;
    transition: 1s;
}

.menu-item>.menu-item-text {
    -ms-flex: auto;
    flex: auto;
    width: 0;
    overflow: hidden;
    transition: 1s;
}

.menu-item:hover>.icon {
    width: 30%;
}

.menu-item:hover>.menu-item-text {
    padding-left: 30%;
    width: 70%;
}

.menu-item>.menu-item-text {
    display: -ms-inline-flexbox;
    display: inline-flex;
    -ms-flex-pack: distribute;
    height: 100%;
    -ms-flex-align: center;
    align-items: center;
    text-align: left;
}

.menu-item:hover, .menu-item:focus {
    cursor: pointer;
    width: 100%;
    background-color: #3F939C;
    overflow: visible;
}

/* 主体左 end */

/* 主体右 start */

.main-container{
    display: -ms-flexbox;
    display: flex;
    -ms-flex-flow: column nowarp;
        flex-flow: column nowarp;
    -ms-flex-pack: distribute;
        justify-content: space-around;
}

/* 主体右 end */